Improvement in carriage-prof



L. S'AWYER.;

Carriage-Top Prop.

No. 101,518. Patented April 5, 1870.

-N4 PETERS. PHOTO-LITHOGRAPHER, WASPHNGTON D C A waited tstet aient @Wire Letters Patent No. 101,518, 'dated April 5, 1870.

IMPROVEMENT 12N CARRIAGE-PROP.'

The Scledule referred to in these Letters Patent and making part oi the same MQW- To all whom 'it may concern.- v

Be it known that I, LEONARD SAWYER, of South Amesbury, in the county of Essex and State of Massaehusets, have invented a new and improved Carriage-Prop; and I do` hereby declare that 'the following is a full, clear, and exaetdescript'ion thereof', which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings forming part of this specification, in which- Figure 1 represents a sectional side view of my in1- proved carriage-prop.

Figure 2 is a transverse section of the saine, taken on the plane ofthe line a: x, tig. 1.

Similar letters oi" reference indicate corresponding parts.

This invention relates to a. novel manner of coustruetiug and arranging the prop or arm vfor holding the metal stays or rods of wagon-tops, and is intended more particularly as an improvement on the prop. for which Letters Patent of the United States, numbered 54,782, were granted to me on the 15th day of May, 18

The present invention has for its object to so provide the prop that the nut at its end, for holding the stays or rods in place, cannot be worked loose by the swinging of the said stays or rods on the prop during the expanding and folding together of the carriagetop.

The invention consists, vfirst, in swiveling the prop in 'the plate'that secures it to the carriage-bow or frame; and, secondly, in making the prop square whereit sustains pue of the stays or rods, so that it will be turned by and with such stay or rod. Thus, while the prop is being turned in its swivel-support, all friction is removed from the nut during such motion.

A, in the drawing, represents a portion of the carriage-bow, to which the plate B, for holding the arm or prop O, is attached by means of screws e, or in other suitable manner.

The plate B has an outwardly-projectil1g tubular extension, b, which serves to lengthen. the support for the prop, and which is polygonal on the outside, to securely retain the collar The prop is'not, usually, screwed into the plate B, but is swiveled, therein, so as to freely revolvein the same.

On its inner end thc prop has a head ,c, which keepsl it in place, and prevents it from being withdrawn from or falling out of the plate B.

The collar D serves to hold in place the Vleather or covering E ofthe bow, and is prevented from turning so that it may not ehafe or cut the leather. y

F F are the stays or rods, held by the prop, and

Gr is the nut, screwed upon the outer end of the prop, for holding the stays in place.

Ordinarily, all the stays-swing loose on the prop, which is fixed, and therefore, the outer stay, working against the inner face of the nut, will frequently turn the same by friction, and work it o.

To prevent this, I have made the prop square; as at (I, where it passes through at least one of the stays, the latter having a corresponding perforation. lll-1e stay, when swung, will thereby turn the prop-with it, the latter being swiveled to permit of'its being turned, and, as the prop turns with the stay,'and the nut with the prop, the said nut will never be Worked o by the stay. t

Having thus described my invention, I claim as new and desire to secure by Letters Patent- Y 1. The carriage prop, swiveled in the supportingplate B, so that it can freely turn in the same, as set forth. t

2. The swivelcd carriage-prop, provided with the polygonal portion al, to be turned by the stay or rod, as and for the purpose specified.

LEONARD SAWYER. Witnesses:

NATHAN'rnL 1). T11/rox, J 011x S. Mense. 

